DL3 server does come on at powerup

I've had 3 DL3's for about a month. In the last couple weeks when I power them up, one of the servers doesn't power up. The moving light part powers on and goes thru it's normal calibration just no server, screen or CMA contact. I have to go manually turn it on(holding the top and bottom buttons). It works fine once I go up and turn it on. It was turning on before correctly. Any suggestions?
Thanks in advance,